Gratiola officinalis L. - Accepted: Gratiola officinalis L. bei Zander 2008; Familie: Scrophulariaceae (Zander 2008)
Gratiola officinalis L. - Accepted: Gratiola officinalis L. bei The Plant List (2010); Familie: Plantaginaceae (APG III)
Gratiola officinalis L. - Accepted: Gratiola officinalis L. bei The Plant List (2014), version 1.1; Familie: Scrophulariaceae (APG III)
Gratiola officinalis L. - Accepted: Gratiola officinalis L. bei The Plant List (2010); Familie: Plantaginaceae (APG IV)
Gratiola officinalis L. - Accepted: Gratiola officinalis L. bei BfN Checklist Flora DE; Familie: Plantaginaceae (APG IV)

Kew Gardens and Collaborators (2017): Plants of the World Online. see: plantsoftheworldonline.org.;

The International Plant Names Index (2009). Published on the Internet http://www.ipni.org; Courtesy to IPNI, 2009. Exported from IPNI at date: 2009-09-22 20:17:51;